| CVE Number | Vulnerability | Product | Severity | Date |
|---|---|---|---|---|
| CVE-2026-49160 | HTTP.sys Denial of Service Vulnerability | Windows 11, Windows 10, Windows Server | Important | 01-07-2026 |
Technical Information
An unauthenticated attacker could exploit uncontrolled resource consumption in HTTP/2 by leveraging the HTTP/2 Bomb attack, sending specially crafted requests with highly compressed headers that forces a vulnerable server to allocate large amounts of memory and processing resources, resulting in a denial-of-service condition over the network.
Patch release date: Jun 09, 2026
Further information on this vulnerability is available at : CVE-2026-49160
Affected Software
Windows Server 2019 (Server Core installation),Windows 10 Version 1809 for 32-bit Systems,
Windows 10 Version 21H2 for 32-bit Systems,
Windows 10 Version 21H2 for ARM64-based Systems,
Windows 10 Version 21H2 for x64-based Systems,
Windows Server 2022 (Server Core installation),
Windows 10 Version 22H2 for x64-based Systems,
Windows 10 Version 22H2 for ARM64-based Systems,
Windows Server 2025 (Server Core installation),
Windows 10 Version 22H2 for 32-bit Systems,
Windows 11 Version 25H2 for ARM64-based Systems,
Windows 11 Version 25H2 for x64-based Systems,
Windows 11 Version 23H2 for ARM64-based Systems,
Windows 11 Version 23H2 for x64-based Systems,
Windows 11 Version 24H2 for ARM64-based Systems,
Windows 11 Version 24H2 for x64-based Systems,
Windows 11 version 26H1 for x64-based Systems,
Windows 11 Version 26H1 for ARM64-based Systems,
Windows Server 2025,
Windows 10 Version 1607 for 32-bit Systems,
Windows 10 Version 1607 for x64-based Systems,
Windows Server 2016,
Windows Server 2016 (Server Core installation),
Windows 10 Version 1809 for x64-based Systems,
Windows Server 2022,
Windows Server 2019